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Abstract classes in Swift Language
... of the method. When logSalary is called on the instance after it has been cast to an Employee, it calls the original implementation (it doesn't not dynamically dispatch to the overridden version even though the instance is actually a Software Engineer.
For more information, check great WWDC video ...
Getting current unixtimestamp using Moment.js
.... Which moment.js won't actually parse back afterwards, unless you convert/cast it back to a number first.
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Java Round up Any Number
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^^ "a" needs to be a double or cast a double.
– Codeversed
Jan 25 '17 at 16:15
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Validation failed for one or more entities. See 'EntityValidationErrors' property for more details [
...net as well in msdn.microsoft.com/en-us/library/ms164891.aspx, however the cast is probably not defined for vb.net, and instead you should probably do DirectCast ($exception,System.Data.Entity.Validation.DbEntityValidationException)
– yoel halb
Jul 16 '15 at 19...
Two versions of python on linux. how to make 2.7 the default
...'t actually want to change your default Python.
Your distro installed a standard system Python in /usr/bin, and may have scripts that depend on this being present, and selected by #! /usr/bin/env python. You can usually get away with running Python 2.6 scripts in 2.7, but do you want to risk it?
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What is the default value for enum variable?
...iterally 0, although its type remains as G (as quoted by the docs above, a cast to the given enum type).
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How to remove items from a list while iterating?
... Python lists, with minimal modifications. For instance, not all languages cast empty lists to a False as Python does. You can substitute while somelist: for something more explicit like while len(somelist) > 0:.
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Is Mono ready for prime time? [closed]
... Mono runtime, or is it really, really compatible enough to just take of and run already written code for Microsoft's runtime?
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How to check if command line tools is installed
...as it appears in the Applications directory.
There are also the xcodebuild and xcode-select files in /usr/bin
I need to know if the command line tools is installed.
Is there a command for it?
What can I do to see if XCode CLT is installed and if yes to find the version installed?
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Using generic std::function objects with member functions in one class
... Just add a little tip: member function pointer can be implicitly cast to std::function, with extra this as it's first parameter, like std::function<void(Foo*, int, int)> = &Foo::doSomethingArgs
– landerlyoung
Nov 25 '19 at 6:44
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